package com.gong.calc;


import jakarta.servlet.http.HttpSession;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.SessionAttribute;

@RequestMapping("/user")
@RestController
public class UserController {
    @RequestMapping("/login")
    public Boolean login(String userName, String password, HttpSession session) {
        /*if(userName==null || userName.length()==0 || password==null || password.length()==0){
            return false;

        }*/
        //参数校验
        if(!StringUtils.hasLength(userName) || !StringUtils.hasLength(password)) {
            return false;
        }
        //判断密码是否正确
        //上面已经做了判空的处理，username不会为null，这是一种习惯，可以防null，把变量写在后面
        if ("admin".equals(userName) && "123456".equals(password)) {
            //设置session信息
            session.setAttribute("userName", userName);
            return true;
        }
        return false;

    }


    @RequestMapping("/index")
    public String getUserName(@SessionAttribute("userName") String userName){
    return userName;
    }
}
